Valve.



No. 869,281. PATENTED OCT. 29. 1907.

V W. M. WHEILDON 6: H. A. MAXWELL.

VALVE.

APPLICATION FILED AUG.11.1906.

. ms mwms PETERS co., WASHINGTON, o. c.

UNITED STATES PATENT OFFICE.

W] LLIAM M. WHEILDON, OF BOSTON, AND HERBERT A. MAXWELL, OF MEDFORD,MASSACHUSETTS, ASSIGNORS TO AMERICAN SODA FOUNTAIN COMPANY, OF BOSTON,MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

VALVE.

Specification of Letters Patent.

Patented Oct. 29, 1907.

Application filed August 11, 1906. Serial No. 330,106.

To all whom it may concern:

Be it known that we, WILLIAM M. WIIEILDoN and HERBERT A. MAXWELL,citizens of the United States, and residents of Boston, in the county ofSuffolk, and Medford, in the county of Middlesex, respectively, andState of Massachusetts, have invented new and useful Improvements inValves, of which the following is a specification.

Our invention relates to apparatus for washing drinking utensils such asglass tumblers and consists in sundry improvements hereinbelowdescribed.

In the drawing hereto annexed which illustrates an embodiment of ourinvention, there is shown a tumbler washer in central vertical crosssection.

Tumbler washers have heretofore been constructed wherein a movabletumbler support situated in a convenient basin communicated with a valvewhich controlled the supply of water for washing the tumbler, so thatwhen the tumbler was placed upon or pressed down upon this support thevalve was opened and water distributed through suitable jets to wash thetumbler both inside and out. For this purpose a fairly copious supply ofwater is required and consequently the Water inlets are necessarily offairly large capacity so that considerable force has to be exertedthrough the medium of the tumbler in order to force open the valves ofthe contrivances heretofore employed for tumbler washing. Under suchcircumstances there is great danger of breaking the tumblers if they bemade of thin glass and as thin tumblers are very much more generallyused now than heretofore, the employment of the old fashioned tumblerwashers is attended with considerable breakage of glass.

The object of our invention here described is to provide an apparatuscapable of delivering copious streams [or tumbler washing, wherein thewater inlets are of large capacity and the valves which control the samemay be easily and smoothly operated with no more power than that exertedby the weight of the tumbler itself.

Furthermore, it is our object to simplify as far as possible the tumblerwasher devices, and we have provided, therefore, a washing arrangementwhich dispenses with the usual ring or annular tube from which thewashing jets are directed to the outside of the glass.

For these purposes we have contrivedand provide the following devices.

The casing or casting marked A in the drawing serves as a support forthe washing vessel or bowl G and also as the member to which the supplyand waste pipes may be coupled. The casing A surrounds an interiorcylindrical casing A to which it is secured by the webs A whereof one issufficiently enlarged to provide for the supply passage A The interiorof the inner cylin drical portion A of the casing serves as the chamberfor the main supply valve B. The upper portion of the casing A is screwthreaded and the inner cylindrical lining C is screw threaded from aboveinto the interior of the casing A this lining C being counterbored atits lower end so as to form the depending annular lip c and the conicalvalve seat b The main valve B has a sliding fit within the lower portionof the interior of the casing A and the upper end of the said valve Bslides loosely inside the depending annular lip c and seats against thevalve seat b At 1) there is provided a small aperture wherebycommunication is afforded between the water supply pipe A and the lowerportion of the valve chamber in the casing A. The base of the valve Bhas suificient area to enable the water pressure communicated from theinlet pipe to hold the said valve firmly against its seat, the valveacting therefore as a check valve against the escape of water from thesupply pipe. The valve B is centrally bored at b and the aperture thusformed is closed by a bleeder valve E which seats upwardly against thelower end of the central bore 17 and has a stem E which passes throughthe central bore of the main valve B. The upper end of the stem F issecured by its threaded plug F to the lower end of the hollow standardE. This hollow standard E carries a collar E and the spider arms E whichconstitute the tumbler support, and a spring E mounted between thecollar E and the spider cap D serves to hold the standard E and theparts attached thereto in the elevated position shown in the drawing sothat the bleeder valve F is kept closed and the full pressure of wateron the lower side of the main valve B exerts itself to keep the mainpassage of the washing apparatus also closed. The standard E is tubularand is provided with lateral ports e and e for the purpose of affordingfree passage to Water entering from the supply pipe A when the mainvalve has been opened. The cap D is hollow and has mounted upon it thespider pipes D which are bent at about a right angle and extend upward asuitable distance, their ends being closed except for the downwardlyinclined transverse slots D the said slots serving as outlets for thewash water directed to the outside of the tumbler. It is to be notedalso that the lower end of the standard E is cut away a little on eachside at 6-.

The mode of operation of the tumbler washer is as follows: With theparts in the condition shown in the drawing the spring E is designed andconstructed to have preferably sufficient expansive strength to hold thestandard E and its attached parts, including the main valve B in theelevated position with the main valve closed. We do not, however, relyupon the spring E wholly for the closure of the main valve B, the actionof the spring being supplemented and reinforced by the pressure of waterin the bottom of the valve chamber, this pressure being communicatedfrom the supply pipe A through the small aperture 1) or, it may be,through such leakage around the sides of the valve B which isinevitable. The strength of the spring E is, however, preferably suchthat when a tumbler of the average size and weight is placed upon thespider arms E bottom up as is the custom, this weightwill be enough toovercome the stress of the spring E enough to allow the standard E todescend a little and to open the bleeder valve F thus admitting water tothe internal bore b of the main valve B. This Water being underpressure, rises around the stem F of the valve F passes through theclearances e and thence through the tubular standard E, finding its wayout through any of the passages provided. This releases the pressureupon the lower side of the main Valve B and allows the water pressureupon the annular ledge b to force the valve B downward until it leavesthe lining cylinder C entirely and allows the full stream of water fromthe pipe A to flow through the lateral apertures a, cap D, tubes D,tubular standard E and out through the rose It and downwardly slantingslots D The instant that the tumbler is removed from the spider arms Ethe spring E pulls the valve F up against its seat and then the springE, materially assisted by the Water pressure which is exerted upon thebottom of the valve B, lifts the valve to its seat. All water hammeringand shocks due thereto are avoided by so proportioning the upper part ofthe valve B that it enters the counterbored portion of the lining C andchecks the flow gradually so that when the valve finally seats at b itdoes so without shock. The tumbler washing is thus effectively andautomatically accomplished, the valve being controlled by the verysmallest application of force, the weight of a very light tumbler beingentirely sufficient to work the bleeder valve and thus to allow thewater pressure itself to accomplish the rest of the valve opening. Thewashing of the exterior of the tumbler is effectively provided for bymeans of the inclined slots D These slots cause a fan-shaped jet ofwater to be projected toward the outside of the tumbler and three suchjets are distributed so that the entire outer surface of the tumbler isreached by the water. This enables us to dispense with the annular pipeheretofore used, but without sacrificing any of the efficiency of theapparatus as a Whole. I

The operation of this device is extremely sensitive and rapid. Theinstant that the bleeder valve is opened only slightly the main valveresponds to the change in differential pressure and descends so that themain valve and bleeder valve move almost simultaneously. Furthermore,when the bleeder valve is closed by release of pressure from above themain valve closes very promptly and would, unless the antiwater-hammerdevices were employed, close with considerable violence. The waste wateras is usual descends through the passages provided around the outside ofthe valve chamber A between it and the casing A and passes to the wastepipe which may be secured to the lower end of the casing A.

What I claim is:

l. The combination of an inlet pipe. outlet pipe and valve chamber. amain valve sliding in said chamber, and seated therein, the portion ofthe valve chamber below the main valve being normally inpressureco1nmunication with the supply pipe, said main valve centrallyperforated, a bleeder valve to close the central perforation. avertically movable weight support, and connections between the supportand bleeder valve to open the same to relieve liquid pressure in thebottom of the main Valve.

2. The combination of an inlet pipe and outlet pipe and valve chamber, amain valve sliding in said chamber and seated therein, said main valvebeing perforated to admit water from the supply pipe to the lowerportion of the valve chamber and also centrally perforated, the centralperforation being closed by a bleeder valve. said bleeder valve, avertically movable Weight-support and connections between the supportand bleeder valve to open the same to relieve liquid pressure on thebottom of said main valve.

Signed by us at Boston, Massachusetts, this thirty first day of July,1906.

\VILLIAM M. W'HEILDON. HERBERT A. MAXW'ELL. Witnesses THOMAS J.Cnsu'rox, J11, LOUIS \V. NEAL.

